20 #ifndef HT_FRAME_EXCHANGE_MANAGER_H
21 #define HT_FRAME_EXCHANGE_MANAGER_H
23 #include "ns3/mpdu-aggregator.h"
24 #include "ns3/msdu-aggregator.h"
25 #include "ns3/qos-frame-exchange-manager.h"
26 #include "ns3/wifi-psdu.h"
33 class MgtAddBaResponseHeader;
34 class RecipientBlockAckAgreement;
46 friend class ::AmpduAggregationTest;
86 Time ppduDurationLimit)
const override;
120 Time availableTime)
const;
135 Time ppduDurationLimit)
const;
168 std::optional<uint8_t> optTid = std::nullopt,
169 std::optional<Mac48Address> optAddress = std::nullopt);
177 bool inAmpdu)
override;
181 const std::vector<bool>& perMpduStatus)
override;
313 uint16_t startingSeq,
HtFrameExchangeManager handles the frame exchange sequences for HT stations.
Ptr< MpduAggregator > m_mpduAggregator
A-MPDU aggregator.
void ReceiveMpdu(Ptr< const WifiMpdu > mpdu, RxSignalInfo rxSignalInfo, const WifiTxVector &txVector, bool inAmpdu) override
This method handles the reception of an MPDU (possibly included in an A-MPDU)
void SendDelbaFrame(Mac48Address addr, uint8_t tid, bool byOriginator)
Sends DELBA frame to cancel a block ack agreement with STA addressed by addr for TID tid.
std::map< AgreementKey, Ptr< WifiMpdu > > m_pendingAddBaResp
pending ADDBA_RESPONSE frames indexed by agreement key
void SendAddBaResponse(const MgtAddBaRequestHeader *reqHdr, Mac48Address originator)
This method can be called to accept a received ADDBA Request.
void CtsTimeout(Ptr< WifiMpdu > rts, const WifiTxVector &txVector) override
Called when the CTS timeout expires.
Ptr< WifiPsdu > m_psdu
the A-MPDU being transmitted
Ptr< BlockAckManager > GetBaManager(uint8_t tid) const
Get the Block Ack Manager handling the given TID.
virtual Ptr< WifiPsdu > GetWifiPsdu(Ptr< WifiMpdu > mpdu, const WifiTxVector &txVector) const
Get a PSDU containing the given MPDU.
virtual void BlockAckTimeout(Ptr< WifiPsdu > psdu, const WifiTxVector &txVector)
Called when the BlockAck timeout expires.
Ptr< WifiMpdu > GetBar(AcIndex ac, std::optional< uint8_t > optTid=std::nullopt, std::optional< Mac48Address > optAddress=std::nullopt)
Get the next BlockAckRequest or MU-BAR Trigger Frame to send, if any.
virtual Time GetPsduDurationId(Time txDuration, const WifiTxParameters &txParams) const
Compute how to set the Duration/ID field of PSDUs that do not include fragments.
virtual bool NeedSetupBlockAck(Mac48Address recipient, uint8_t tid)
A Block Ack agreement needs to be established with the given recipient for the given TID if it does n...
void FinalizeMacHeader(Ptr< const WifiPsdu > psdu) override
Finalize the MAC header of the MPDUs in the given PSDU before transmission.
void TransmissionSucceeded() override
Take necessary actions upon a transmission success.
virtual bool SendMpduFromBaManager(Ptr< WifiMpdu > mpdu, Time availableTime, bool initialFrame)
If the given MPDU contains a BlockAckReq frame (the duration of which plus the response fits within t...
Ptr< MpduAggregator > GetMpduAggregator() const
Returns the aggregator used to construct A-MPDU subframes.
virtual bool IsWithinLimitsIfAggregateMsdu(Ptr< const WifiMpdu > msdu, const WifiTxParameters &txParams, Time ppduDurationLimit) const
Check if the PSDU obtained by aggregating the given MSDU to the PSDU specified by the given TX parame...
virtual bool IsWithinAmpduSizeLimit(uint32_t ampduSize, Mac48Address receiver, uint8_t tid, WifiModulationClass modulation) const
Check whether an A-MPDU of the given size meets the constraint on the maximum size for A-MPDUs sent t...
void SetWifiMac(const Ptr< WifiMac > mac) override
Set the MAC layer to use.
void ProtectionCompleted() override
Transmit prepared frame upon successful protection mechanism.
void ForwardMpduDown(Ptr< WifiMpdu > mpdu, WifiTxVector &txVector) override
Forward an MPDU down to the PHY layer.
Ptr< MsduAggregator > GetMsduAggregator() const
Returns the aggregator used to construct A-MSDU subframes.
void SendPsduWithProtection(Ptr< WifiPsdu > psdu, WifiTxParameters &txParams)
Send a PSDU (A-MPDU or BlockAckReq frame) requesting a BlockAck frame or a BlockAckReq frame followed...
void NotifyReceivedNormalAck(Ptr< WifiMpdu > mpdu) override
Notify other components that an MPDU was acknowledged.
void EndReceiveAmpdu(Ptr< const WifiPsdu > psdu, const RxSignalInfo &rxSignalInfo, const WifiTxVector &txVector, const std::vector< bool > &perMpduStatus) override
This method is called when the reception of an A-MPDU including multiple MPDUs is completed.
void RetransmitMpduAfterMissedAck(Ptr< WifiMpdu > mpdu) const override
Retransmit an MPDU that was not acknowledged.
void DoDispose() override
Destructor implementation.
static TypeId GetTypeId()
Get the type ID.
bool StartFrameExchange(Ptr< QosTxop > edca, Time availableTime, bool initialFrame) override
Start a frame exchange (including protection frames and acknowledgment frames as needed) that fits wi...
WifiTxParameters m_txParams
the TX parameters for the current frame
bool IsWithinLimitsIfAddMpdu(Ptr< const WifiMpdu > mpdu, const WifiTxParameters &txParams, Time ppduDurationLimit) const override
Check if the PSDU obtained by aggregating the given MPDU to the PSDU specified by the given TX parame...
void SendPsdu()
Send the current PSDU, which can be acknowledged by a BlockAck frame or followed by a BlockAckReq fra...
bool SendAddBaRequest(Mac48Address recipient, uint8_t tid, uint16_t startingSeq, uint16_t timeout, bool immediateBAck, Time availableTime)
Sends an ADDBA Request to establish a block ack agreement with STA addressed by recipient for TID tid...
virtual bool TryAggregateMsdu(Ptr< const WifiMpdu > msdu, WifiTxParameters &txParams, Time availableTime) const
Check if aggregating an MSDU to the current MPDU (as specified by the given TX parameters) does not v...
virtual void NotifyTxToEdca(Ptr< const WifiPsdu > psdu) const
Notify the transmission of the given PSDU to the EDCAF associated with the AC the PSDU belongs to.
virtual bool SendDataFrame(Ptr< WifiMpdu > peekedItem, Time availableTime, bool initialFrame)
Given a non-broadcast QoS data frame, prepare the PSDU to transmit by attempting A-MSDU and A-MPDU ag...
void NotifyPacketDiscarded(Ptr< const WifiMpdu > mpdu) override
Pass the given MPDU, discarded because of the max retry limit was reached, to the MPDU dropped callba...
virtual void ForwardPsduDown(Ptr< const WifiPsdu > psdu, WifiTxVector &txVector)
Forward a PSDU down to the PHY layer.
void CalculateAcknowledgmentTime(WifiAcknowledgment *acknowledgment) const override
Calculate the time required to acknowledge a frame according to the given acknowledgment method.
~HtFrameExchangeManager() override
void DequeuePsdu(Ptr< const WifiPsdu > psdu)
Dequeue the MPDUs of the given PSDU from the queue in which they are stored.
void ReleaseSequenceNumbers(Ptr< const WifiPsdu > psdu) const override
Make the sequence numbers of MPDUs included in the given PSDU available again if the MPDUs have never...
virtual void MissedBlockAck(Ptr< WifiPsdu > psdu, const WifiTxVector &txVector, bool &resetCw)
Take necessary actions when a BlockAck is missed, such as scheduling a BlockAckReq frame or the retra...
Ptr< MsduAggregator > m_msduAggregator
A-MSDU aggregator.
std::pair< Mac48Address, uint8_t > AgreementKey
agreement key typedef (MAC address and TID)
void SendBlockAck(const RecipientBlockAckAgreement &agreement, Time durationId, WifiTxVector &blockAckTxVector, double rxSnr)
Create a BlockAck frame with header equal to blockAck and start its transmission.
QosFrameExchangeManager handles the frame exchange sequences for QoS stations.
Maintains the scoreboard and the receive reordering buffer used by a recipient of a Block Ack agreeme...
Simulation virtual time values and global simulation resolution.
a unique identifier for an interface.
This class stores the TX parameters (TX vector, protection mechanism, acknowledgment mechanism,...
This class mimics the TXVECTOR which is to be passed to the PHY in order to define the parameters whi...
WifiModulationClass
This enumeration defines the modulation classes per (Table 10-6 "Modulation classes"; IEEE 802....
AcIndex
This enumeration defines the Access Categories as an enumeration with values corresponding to the AC ...
Every class exported by the ns3 library is enclosed in the ns3 namespace.
RxSignalInfo structure containing info on the received signal.
WifiAcknowledgment is an abstract base struct.